Example usage for java.net URL openStream

List of usage examples for java.net URL openStream

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Introduction

In this page you can find the example usage for java.net URL openStream.

Prototype

public final InputStream openStream() throws java.io.IOException

Source Link

Document

Opens a connection to this URL and returns an InputStream for reading from that connection.

Usage

From source file:net.sf.janos.util.ui.ImageUtilities.java

/**
 * Loads an image from the provided resource
 * @param resource the image to load//from   w w  w  .j a v  a 2  s .  co m
 * @return the loaded image, or null if an error occurred
 */
public static ImageData loadImageData(URL resource) {
    if (resource == null) {
        return null;
    }
    ImageData data = null;
    synchronized (IMAGE_DATA_CACHE) {
        try {
            data = IMAGE_DATA_CACHE.get(resource);
            return data;
        } catch (NoSuchKeyException e) {
            // fall through
        }
    }
    InputStream is = null;
    try {
        is = resource.openStream();
        data = new ImageData(is);
        synchronized (IMAGE_DATA_CACHE) {
            IMAGE_DATA_CACHE.put(resource, data);
        }
    } catch (FileNotFoundException e) {
        Log log = LogFactory.getLog(ImageUtilities.class);
        log.debug("Image file " + resource + " does not exist");
        synchronized (IMAGE_DATA_CACHE) {
            IMAGE_DATA_CACHE.put(resource, null);
        }
    } catch (IOException e) {
        Log log = LogFactory.getLog(ImageUtilities.class);
        log.error("Couldn't load image from " + resource, e);
    } finally {
        try {
            is.close();
        } catch (Exception e) {
        }
    }
    return data;
}

From source file:marytts.tools.install.LicenseRegistry.java

private static void downloadLicense(URL licenseURL) {

    assert remote2local != null;
    File downloadDir = new File(System.getProperty("mary.downloadDir", "."));
    String filename = licenseURL.toString().replace('/', '_').replace(':', '_');
    File licenseFile = new File(downloadDir, filename);
    System.out.println("Downloading license from " + licenseURL.toString());
    try (FileOutputStream out = new FileOutputStream(licenseFile); InputStream in = licenseURL.openStream()) {
        IOUtils.copy(in, out);/*w w w  .j  a  v  a2  s  . c om*/
    } catch (IOException e) {
        System.err.println("Cannot download license from " + licenseURL.toString());
        e.printStackTrace();
    }

    // Now we need to update remote2local and write an updated license-index.txt:
    remote2local.put(licenseURL, filename);
    saveIndex();

}

From source file:com.aurel.track.admin.customize.lists.BlobBL.java

/**
 * This method returns the iconKey content in byte array.In case of not founds returns the default image content. 
 * @param iconKey//from   ww  w .  java  2  s. c  om
 * @param iconName
 * @param inline
 * @param defaultIconPath
 * @return
 */
public static byte[] getAvatarInByteArray(Integer iconKey, String iconName, boolean inline,
        String defaultIconPath) {
    byte[] imageContent = null;
    if (iconKey != null) {
        TBLOBBean blobBean = loadByPrimaryKey(iconKey);
        if (blobBean != null) {
            imageContent = blobBean.getBLOBValue();
        }
    }
    if (defaultIconPath != null) {
        if (imageContent == null || imageContent.length == 0) {
            try {
                URL defaultIconURL = ApplicationBean.getInstance().getServletContext()
                        .getResource(defaultIconPath);
                imageContent = IOUtils.toByteArray(defaultIconURL.openStream());
            } catch (IOException e) {
                LOGGER.info("Getting the icon content for " + defaultIconPath + " from URL failed with "
                        + e.getMessage());
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug(ExceptionUtils.getStackTrace(e));
                }
            }
        }
        if (imageContent == null || imageContent.length == 0) {
            InputStream is = ApplicationBean.getInstance().getServletContext()
                    .getResourceAsStream(defaultIconPath);
            ByteArrayOutputStream output = new ByteArrayOutputStream();
            try {
                byte[] buf = new byte[1024];
                int numBytesRead;
                while ((numBytesRead = is.read(buf)) != -1) {
                    output.write(buf, 0, numBytesRead);
                }
                imageContent = output.toByteArray();
                output.close();
                is.close();
            } catch (IOException e) {
                LOGGER.info("Getting the icon content for " + defaultIconPath
                        + " as resource stream failed with " + e.getMessage());
                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug(ExceptionUtils.getStackTrace(e));
                }
            }
        }
    }
    return imageContent;
}

From source file:com.aurel.track.util.PropertiesConfigurationHelper.java

/**
 * Gets the PropertiesConfiguration for a property file from servlet context
 * @param servletContext/*  w ww  .  j ava2s  . c  om*/
 * @param pathWithinContext
 * @param propFile
 * @return
 * @throws ServletException
 */
public static PropertiesConfiguration loadServletContextPropFile(ServletContext servletContext,
        String pathWithinContext, String propFile) throws ServletException {
    PropertiesConfiguration propertiesConfiguration = null;
    InputStream in = null;
    URL propFileURL = null;
    try {
        if (servletContext != null && pathWithinContext != null) {
            if (!pathWithinContext.startsWith("/")) {
                pathWithinContext = "/" + pathWithinContext;
            }
            if (!pathWithinContext.endsWith("/")) {
                pathWithinContext = pathWithinContext + "/";
            }
            propFileURL = servletContext.getResource(pathWithinContext + propFile);
            in = propFileURL.openStream();
            propertiesConfiguration = new PropertiesConfiguration();
            propertiesConfiguration.load(in);
            in.close();
        }
    } catch (Exception e) {
        LOGGER.error("Could not read " + propFile + " from servlet context " + propFileURL == null ? ""
                : propFileURL.toExternalForm() + ". Exiting. " + e.getMessage());
        throw new ServletException(e);
    }
    return propertiesConfiguration;
}

From source file:com.isa.utiles.Utiles.java

public static void downloadFile(String linkDescarga, String rutaDestino)
        throws MalformedURLException, IOException {

    URL urlFile = new URL(linkDescarga);
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    InputStream in = new BufferedInputStream(urlFile.openStream());

    byte[] buf = new byte[1024];
    int n = 0;//w  w w  .jav  a 2 s. c  om
    while (-1 != (n = in.read(buf))) {
        out.write(buf, 0, n);
    }
    out.close();
    in.close();

    /*
    byte[] response = out.toByteArray();
    FileOutputStream fos = new FileOutputStream(rutaDestino);
    fos.write(response);
    fos.close();
    */

    File file = new File(rutaDestino);
    file.setWritable(true);
    file.setReadable(true);

    BufferedWriter bw = new BufferedWriter(new FileWriter(file, true));
    bw.write(out.toString());
    bw.close();
}

From source file:com.inamik.template.util.TemplateConfigUtil.java

/**
 * readTemplateLibConfig w/URL - Read a template library xml
 * configuration from a URL./*  w  ww  .  j a  v a 2  s.c  om*/
 * <p>
 * This is a convenience method and is equivelent to:
 * <p>
 * &nbsp;&nbsp; <code>readTeplateLibConfig(url.oipenStream())</code>
 *
 * @param url The URL to read.
 * @return A template library configuration suitable for adding to a
 *         template engine configuration.
 * @throws IOException
 * @throws TemplateException
 * @throws NullPointerException if <code>url == null</code>
 *
 * @see #readTemplateLibConfig(InputStream)
 * @see TemplateEngineConfig
 */
public static TemplateLibConfig readTemplateLibConfig(final URL url) throws IOException, TemplateException {
    return readTemplateLibConfig(url.openStream());
}

From source file:com.netflix.config.ConfigurationManager.java

/**
 * Load properties from resource file into the system wide configuration
 * @param path path of the resource/*from w  w  w.  j a v  a 2 s  . c o  m*/
 * @throws IOException
 */
public static void loadPropertiesFromResources(String path) throws IOException {
    if (instance == null) {
        instance = getConfigInstance();
    }
    ClassLoader loader = Thread.currentThread().getContextClassLoader();
    URL url = loader.getResource(path);
    if (url == null) {
        throw new IOException("Cannot locate " + path + " as a classpath resource.");
    }
    Properties props = new Properties();
    InputStream fin = url.openStream();
    props.load(fin);
    fin.close();
    if (instance instanceof AggregatedConfiguration) {
        String name = getConfigName(url);
        ConcurrentMapConfiguration config = new ConcurrentMapConfiguration();
        config.loadProperties(props);
        ((AggregatedConfiguration) instance).addConfiguration(config, name);
    } else {
        ConfigurationUtils.loadProperties(props, instance);
    }
}

From source file:net.ontopia.utils.TestFileUtils.java

public static void transferTestInputDirectory(ResourcesDirectoryReader directoryReader, String path)
        throws IOException {
    for (URL resource : directoryReader.getResources()) {
        String relative = resource.getFile();
        relative = relative.substring(relative.lastIndexOf(path));
        File file = new File(new File(getTestdataOutputDirectory()), relative);
        file.getParentFile().mkdirs();//from w  w w.  j av a 2s  .  c o m
        try (InputStream in = resource.openStream(); OutputStream out = new FileOutputStream(file)) {
            IOUtils.copy(in, out);
        }
    }
}

From source file:name.yumao.douyu.http.PlaylistDownloader.java

private static void downloadInternal(URL segmentUrl) {

    FileOutputStream out = null;/*from  w w  w.  j  av  a 2  s . com*/
    InputStream is = null;
    try {
        byte[] buffer = new byte[512 * 1024];

        is = segmentUrl.openStream();

        if (outFile.equals("")) {
            //                Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("GMT+08:00"));
            //                  SimpleDateFormat simpleDateFormat = new SimpleDateFormat("^yyyy-MM-dd^HH-mm-ss");
            //         //   
            //                   outFile = "record"+File.separator+num+File.separator+simpleDateFormat.format(calendar.getTime());
            outFile = getPath();
        }

        File file = new File(outFile);

        if (!file.getParentFile().exists()) {
            file.getParentFile().mkdirs();
        }

        Date now = new Date();
        System.out.println(now + " " + roomnum + "?: "
                + file.length() / (1024 * 1024L) + "m");

        // System.out.println("Downloading size:"+file.length() / (1024 *
        // 1024L) +"m\r");

        if (file.length() > 1024 * 1024L * Config.SIZE) {
            outFile = getPath();
            file = new File(outFile);
            if (!file.getParentFile().exists()) {
                file.getParentFile().mkdirs();
            }

        }
        out = new FileOutputStream(outFile, file.exists());

        // System.out.println(":"+segmentUrl+"\r");

        int read;

        while ((read = is.read(buffer)) >= 0) {
            out.write(buffer, 0, read);
        }

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            if (out != null) {
                out.flush();
                out.close();
            }

            if (is != null)
                is.close();

        } catch (IOException e) {
            logger.info(":" + segmentUrl + e.getMessage());
            e.printStackTrace();
        }

    }
}

From source file:net.rptools.lib.FileUtil.java

public static byte[] getBytes(URL url) throws IOException {
    InputStream is = null;/*w w  w . j av a  2 s. co m*/
    try {
        is = url.openStream();
        return IOUtils.toByteArray(is);
    } finally {
        IOUtils.closeQuietly(is);
    }
}